Manipulation and Characterization of the Valley Polarized Topological Kink States in Graphene Based Interferometers

Abstract

Valley polarized topological kink states, existing broadly in the domain wall of hexagonal lattices systems, are identified in experiments, unfortunately, only very limited physical properties being given. Using an Aharanov-Bohm interferometer composed of domain walls in graphene systems, we study the periodical modulation of pure valley current in a large range by tuning the magnetic field or the Fermi level. For monolayer graphene device, there exists one topological kink state, and the oscillation of transmission coefficients have single period. The $\pi$ Berry phase and the linear dispersion relation of kink states can be extracted from the transmission data. For bilayer graphene device, there are two topological kink states with two oscillation periods. Our proposal provides an experimental feasible route to manipulate and characterize the valley polarized topological kink states in classical wave and electronic graphene-type crystalline systems.

6 pages, 5 figures

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Cited by in corpus (22)

• Valley-dependent properties of monolayer MoSi${}_2$N${}_4$, WSi${}_2$N${}_4$ and MoSi${}_2$As${}_4$
• Valley-Layer Coupling: A New Design Principle for Valleytronics
• Valley engineering by strain in Kekulé-distorted graphene
• Gapped Topological Kink States and Topological Corner States in Graphene
• Quantum Spin-Valley Hall Kink States: From Concept to Materials Design
• The emergence of one-dimensional channels in marginal-angle twisted bilayer graphene
• Electrical control of crossed Andreev reflection and spin-valley switch in antiferromagnet/superconductor junctions
• Cornertronics in Two-Dimensional Second-Order Topological Insulators
• Metallic Network of Topological Domain Walls
• Band bending and zero-conductance resonances controlled by edge electric fields in zigzag silicene nanoribbons
• Layer Zero-Line Modes in Antiferromagnetic Topological Insulators
• Mesoscopic valley filter in graphene Corbino disk containing a p-n junction
• Transport Induced Dimer State from Topological Corner States
• Scattering of topological kink-antikink states in bilayer graphene structures
• Realization of valley-spin polarized current via parametric pump in monolayer $\mathrm{Mo}{\mathrm{S}}_2$
• Aharonov-Bohm oscillations of four-probe resistance in topological quantum rings in silicene and bilayer graphene
• Self-Organized Bosonic Domain Walls
• Physical Origin of Current Partition at a Topological Trifurcation
• Persistent currents in topological and trivial confinement in silicene
• Valley-dependent transport in strain engineering graphene heterojunctions
• Energy symmetry and interlayer wave function ratio of tunneling electrons in partially overlapped graphene
• Controlling the Interferometers of Zero-Line Modes in Graphene by Pseudomagnetic field